warner



(No Model.) 2 Sheets-Sheet 1.

W. WARNER, Decd.

O. H. M. ATKINS, Executor. VALVE FOR HYDRAULIC ELEVATORS.

No. 512,773. Patented Jan 16, 1894.

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Qwi/tmeoozo k- 344W (No Model.) 2 SheetsSheet' 2.

W..WA-RNER, D.e0d.

C. H. M. ATKINS, Executor. VALVE FOR HYDRAULIC ELEVATORS.

No. 512,773. Patented Jan. 16, 1894.

FIE/L.

UNITE 1 STATES \VARREN WARNER, OF

V ALVE FOR HYDRAULIC ELEVATORS.

SPECIFICATION forming part of Letters Patent No. 512,773, dated January16, 1894.

Application filed February 9, 1891.; Serial No. 380,801. (No model.) 4

To all whom it may concern.-

Be it known that I, WARREN WARNER, a citizen of the United States, and aresident of Cincinnati, in the county of Hamilton and 5 State of Ohio,have invented certain new and useful Improvements in Valves forHydraulic Elevators, of which the following is a specification.

The object of my invention is to provide an [O easily operated andreliable valve for hydraulic elevators, by means of whichthe cab orplatform may be quickly started, and stopped at any position by theoperator; and in connection therewith means to automatically control thevalves and stop the platform or cab at its upper and lower limit oftravel.

The invention will be first fully described in connection with theaccompanying drawlugs, and then particularly referred to and pointed outin the claims.

Referring to the drawings in which like parts are indicated by similarreference letters wherever they occur throughout the various views,Figure 1 is a diametrical section of a valve embodying my invention.Fig. 2 is a detail view in side elevation, and upon a diminished scaleof the rope carriage and ways, with my antomaticvalve tripping dev 1cesin position,the view being taken through line at, w, of Fig. 3. Fig. 3is a top or plan vlew of the valve case cap, with the valve actuatingmechanism in position upon it as seen in Fig. 1. Fig. 4. is a transversesectional view taken through line y,y, of Fig. l;

5 Fig. 5. is a detail view in transverse section taken through line a,z, of Fig. 2. Fig. 6. is a plan view of one of the valve seat piecesdetached.

The valve case is'composed of five cylin- 0 drical sections, eachsection having outwardly projecting flanges at each end the upper andlower sections being closed by caps. The upper section A, has a flangedbranch a, to connect With a supply pipe from the water main.

5 The section A, has a similar branch a, to

connect with the pipe that leads to the elevator cylinder, and thesection A which is similar to section A, has a branch a toconnect withthe exhaust or waste pipe. Be-

0 tween the sections A, and A, and A and A are shorter sections A and Aeach of the ring 0 same size and shape. These are provided with inwardlyprojecting rings or flanges a a.

.which the rod 12 of the lower valve B, ex-

tends, and the packing which excludes Water from the tubular rod W. Thetubular valves B, B, are preferably made of brass having the centralhubs b, b, connectedto the top edges of the tubular portions by arms b.The hub arms and tubular part of each are preferably cast in a singlepiece. The peripheries and lower edges of the tubes B, B, are turned offtrue to make water joints with the seats, and peripheral packing. Thelower endsof 7c the valves are slightly enlarged forming angular offsetsat If. The object of these inner ofisets are to counterpoise thepressure of water upon the top edges of the valves, in effect balancingthe valves, and insuring their rapid and easy movement from their seats.The valve seat supports are also alike except that the upper one iscentrally perforated to pass the valve rod b and they consist of centralrecessed disks, 0, 0, connected to an outer ring 0, by short arms orwebs 0, (See Fig. 6.) The rings 0, are clamped between the flanges ofthe case sections A, A and A A The valve seats are rings 0 of elastic oryielding material which fit into the recesses of the up per faces of thesupports 0, O, and are held seat support 0, is fitted a cup leatherpack- 1ngc, which is compressed against the rod,

b and held in place upon the seat pieceG,

bya ring 0 A similar packing c ,isarranged around-the rod 12 underneaththe hub, 19, of the supply valve B, and held in place by a The rod, 17is also packed at the top 5 of the tubular rod 12 by a packing nut 0 Thetubular rod 19 passes through a stuffing box in the cap A and underneaththe cap it is surrounded bya strainer d, which prevents sand or sedimentfrom entering the rod bear- Inge.

'E, are packing rings which are clamped between the case sections A,andA and A, and A The upper faces of these rings are rabbeted to receivethe cup leather packings e, which are held in place and against theperipheries of the valves by rings e, to form the water tight joints.

The strainer D,is a light tube of brass perforated around its upperportion. It has screwed over its lower end a ring or collar (1, whichrests upon a flange 0. which projects inwardly from the section A. Theupper end of the strainer enters an annular recess in the cap A Thisstrainer as well as the strainer cl, is not necessary to the operationof the device, and is only used when the wator for supplying the powercontains substances or foreign matter. The section A, is also providedwith plugs a, which may be removed for the purpose of freeing thecylinder from any sediment, which may settle in the bottomlof thecylinder, and between it and the. unperforated portion of the tube D.

The springs F, which are coiled around the valve rods 11 b exert a lightdownward pressure upon the valves. They are useful should the packingbecome too tight, but are not es sential to their operation, and may bedispensed with. V

n I will now describe the valve actuating mechanism which is forcompactness and strength mounted upon the cap A of the valve case: G, G,are standards bolted securely. upon the cap A The parallel adjacentfaces g, are channeled; within these channels the rack plates H, H, arefitted to slide vertically.

I, is a pinion, the teeth of which mesh with the teeth in. both racks,and hold the rack plates in their guides. The pinion shaft (which ispreferably in one piece with the pinion) extends out upon each side ofthe standards toreceive the pulleys J ,J towhich the ends of thecab ropej, by which the pinion, is reciprocated, is attached, and also thedevices for rocking the pinion shaft automatically. Collars i, 2', aresecured upon the pinion. shaft upon each side of the rack guides orstandards G, to prevent longitudinal movement of the pinion.

The rack bar H, has a downward extension h, which terminates in aninwardly extending angle lug. The tubular valve rod 11*, passes throughthis lug, and is firmly secured to it between the collar b and thepacking nut 0 The rack bar H, has a similar angular extension h, towhich the upper end of the valverod 11 is secured.

As the cab cablej, has its ends secured in the rims of the pulleys J, J,and the opposite endsof the cable passing around under the pulley. J,and: over the pulley J and it being understood that when the parts arein the position shown inFig. 1 both valves are closed, as they are-whenthe platform or cab is at rest, and that one valve must remain closedwhile the other is moving in either direction. The action of the valveswhen under the control of the operator is easily understood. If it isdesired to send the cab or platform up, the pinion I is revolved to theright. By this operation it travels up the teeth of the rack bar H, andcarries up the rack I-I, opening the supply valve B. When it is desiredto stop the cab the lever or wheel in the cab, by which the cable j, isoperated is released or brought to its central or normal position. (Atwhatever point the cable rope is released the valve held open by theoperator will quickly close and stop the cab.) To lower the cab thepinion is revolved to the left. It then travels up the rack H, carryingwith it the rack I-I,

andopening the valve B.

The means by which the elevator cab is stopped automatically at eitherthe upper or lower limit of its travel,will now be described.

The device above described is placed for use alongside of the frame of dthe rope carrier; and upon the end of the pinion shaft nearest saidframe, and outside of the pulley J, is dependently secured the sector K,the rim of which is slotted to receive the shanks of the studs 70, whichare adjustable in said slot by means of the nuts It, by which they aresecured in place. Looselyjournalednpon the same shaft, alongside of thesector K, is a pendent arm L. Two rock shafts, M, M arejournaled inbearings each of which is made in two parts, with curved lower jaws,which embrace the upper rail N, of the carrier frame. These bearings areclamped upon the rods N. Upon the outer ends of the rock shafts aresecured dependent arms m, m. In the lower ends of these arms are securedperforated studs m which support the ends of thehorizontally arrangedrods 0. To the adjacent ends of the rods are secured tubular boxes 0,which are providedwith spring pressed followers 0'. These are connectedby a link 0 The link 0 is connected to the pendent arm L, by a pivotpin. (See Fig. 2-.) Upon the 1nner ends of the rock shafts M, M, aresecured dependent arms m These extend down in the path of travel of therope carrier, or some moving part of the carriage. Now it will be seenthat when the shafts M, or M are rocked by the moving carrier througheither of the arms m the armsm, or mt, will move correspondinglycarrying the flexible rod to the right or left as the case. may be, andcommunicating motion to the dependent arm L. As this arm is swung ineither directi n-it will strike one or the other of the sector pins 70,carrying the sector with it, and reciprocate the pinion shaft, closingone or other of the valves B, or B, and stopping the platform or cab.

There. are three means for adjusting the automatic tripping device, toinsure the stopping of the cab or platform floor upon a level with theupper and lower floors of the building, and adjusting devices toaccommodate the elevator to buildings of difierent heights: first, byloosening the set screws which so cure the rods 0 in the studs in thelower ends of the arms m, and m, loosening the screwsv in bearings m andmoving said bearings nearer to, or farther from, each other along therod at; second, by giving the inner pendent arms m a differentinclination, and third, by adjusting the studs 70, in the slot in sectorK.

The means above described and shown particularly in Figs. 2 and5 tovibrate the pendent arm L, and through it rock the sector K, to closeeither valve are simple, admit of ready adjustment, and are veryreliable but may be dispensed with, and the arm L, be vibrated byprojections fixed upon the movlng carriage at suitable distances uponeither side of it. For instance, the axles of the carrier wheels n, maybe made to project out far enough to strike it. It is also evident thatthe sector K, may be dispensed with by arranging the rim of the ropepulley to carry the pins 7c. As the pinion I, is held between theopposite valve-moving racks without other bearings,its action upon onerack when turned, is due to the resistance of the other. If thereforethe moving rack is arrested from any cause, any movement of the pinionin the reverse direction, will elevate the other rack,

stop the cab, and start it in the opposite direction. Now it istherefore evident that the automatic stop mechanism will operatepositively, even against the resistance of the operator in the cab.Should the operator through carelessness forget to stop the elevator atits upper or lower limit of travel, .he willfeel the action of theautomatic stop in time for him to release the leveror wheel. Should hefail to heed the warning, and hold the lever or wheel rigidly, theaction of the automatic stop will open the opposite valve, and start thecab in the opposite direction. Thus all damage to the machineryandoccupants of the cab is positively avoided.

By arranging my supply and exhaust valves one above the other as shown,the whole device is very strong, and' occupies but little space. Thevalve case being put up in short sections, and a great many of the partsbeing duplicates, should any of the parts become deranged from anycause, they are easily accessible and readily replaced.

It is evident that many mechanical'changes inthe construction andrelative arrangement of the parts may be made by those skilled in theart without departing from the spirit of my invention. I desire ittherefore to be understood that I do not confine myself to the exactconstruction, shown and described,but consider myself at liberty to makesuch changes and alterations as fairly fall within the spirit and scopeof my invention.

What I claim as new, and desire to secure by Letters Patent, is r 1. Inan elevator valve the combination of the valve case composed of the portsections A, A, A and valve sections A A, arranged one above the other,the covering caps for the upper and lower sections, the seat supports,and packing rings clamped between said sections, the tubular valves,their seats and actuating rods b 19 passing through the upper cap, saidrod Z9 being tubular, and said rod b passing through it, and suitablevalve operating mechanism to open and close said valves substantially asshown and described.

2. The combination substantially as hereinbefore set forth, of the portsections, and the valve sections, arranged one above the other, thevalve packing rings and seat supports clamped between said sections, thesupply and exhaust valves arranged one above the other, the valve rods 6b extending through the cap of the case, the standards G, secured uponthe case cap, the racks H, H, arranged to slide in said standards andconnected respectively to the valve rods, the pinion I, meshing withsaid racks, and means such as shown for imparting motion to said pinionto alternately elevate the racks and open the valves.

3. The combination of the port sections and the Valve sections, arrangedalternately one above the other, the said valve sections having integralguide rings of, the seat supports 0, and packing rings E, clampedbetween the sections, said seat supports being recessed, to

receive the yielding seat packing rings 0 the rings 0 to hold the seatpacking, the cup leather packing rings a, the rings 6, tohold them inplace, the tubular valves B, B", the tubular valve rod o for the uppervalve and the rod 12 passing through it and connected to the lower valveboth of said rods extending through the cap of the upper section toconnect with the valve actuating mechanism,

substantially as shown and described.

4. The hydraulic elevator valve case having the supply and exhaust valvearranged therein, one'above the other and the valve rods extending onethrough the other, and through the cap of the case, in combination withthe guide standards G, secured to the case cap, the racks H, H, fittedto slide in said standards, one of said racks being connected to thesupply and the other to the exhaust valve rod, the pinion 1, arrangedbe-- tween the racks and meshing with the teeth of both, the rope wheelsJ, J, secured upon the pinion shaft, and the valve ropes j, 3'', securedto said wheels and passing around them in opposite directions, to rockthe shaft and alternately open the valves substantially as shown anddescribed.

5. The combination of valve case, the valves arranged therein one abovethe other, the valve rods b b projecting through the cap of the case,the valve actuating mechanism consisting of the vertically slidingracks'connected to the valve rods, the pinion I, arranged between theracks, the sector K, secured upon the pinion shaft, the pins 10, projecting from said sector and the pivoted pendent arm L, passing downbetween the pins k,

and along side of the rope carrier to receive motion from the ropecarriage, substantially as shown and described.

6. In combination with the valves and valve actuating mechanism, thesector K, secured upon the valve moving shaft, the pins 70, adjustablysecured in said sector the pendent arm L, pivoted upon said shaftpassing down between the pins, the rock shafts M, M jou rnaled inbearings upon the rope carrier frame, the arms m, m, secured upon saidshaft, the rod 0, connecting said arms, and connected to the pendent armL, and the arms m m secured upon the rock shafts M, M and projectingdown in the path of the rope carriage, whereby the shafts M, M arerocked the arm L, vibrated and the valves automatically closed.

means substantially as described engaged by the piston and normallydisconnected from the valve-lever mechanism but actuated to engage thesame by the piston in moving to the end of its stroke to produce closureof the valve without thereby interfering with the independent operationof the valve lever mechanism, substantially as and for thepurpose setforth.

WARREN WARNER. Witnesses:

GEO. J. MURRAY, FRANK S. DAVIS.

